Annotation of gforth/cross.fs, revision 1.102
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
1.86 anton 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
1.30 anton 5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
1.87 anton 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21:
1.67 jwilke 22: 0
23: [IF]
24:
25: ToDo:
26: Crossdoc destination ./doc/crossdoc.fd makes no sense when
27: cross.fs is uses seperately. jaw
28: Do we need this char translation with >address and in branchoffset?
29: (>body also affected) jaw
30: Clean up mark> and >resolve stuff jaw
31:
32: [THEN]
1.48 anton 33:
1.77 jwilke 34: hex
35:
36: \ debugging for compiling
37:
38: \ print stack at each colon definition
39: \ : : save-input cr bl word count type restore-input throw .s : ;
40:
41: \ print stack at each created word
42: \ : create save-input cr bl word count type restore-input throw .s create ;
43:
44:
45: \ \ ------------- Setup Vocabularies
46:
47: \ Remark: Vocabulary is not ANS, but it should work...
48:
49: Vocabulary Cross
50: Vocabulary Target
51: Vocabulary Ghosts
52: Vocabulary Minimal
53: only Forth also Target also also
54: definitions Forth
55:
1.78 jwilke 56: : T previous Ghosts also Target ; immediate
1.77 jwilke 57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
1.78 jwilke 62: : T previous Ghosts also Target ; immediate
1.77 jwilke 63: : G Ghosts ; immediate
64:
65: : >cross also Cross definitions previous ;
66: : >target also Target definitions previous ;
67: : >minimal also Minimal definitions previous ;
68:
69: H
70:
71: >CROSS
72:
73: \ find out whether we are compiling with gforth
74:
75: : defined? bl word find nip ;
76: defined? emit-file defined? toupper and \ drop 0
77: [IF]
78: \ use this in a gforth system
79: : \GFORTH ; immediate
80: : \ANSI postpone \ ; immediate
81: [ELSE]
82: : \GFORTH postpone \ ; immediate
83: : \ANSI ; immediate
84: [THEN]
85:
86: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
87: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
88: 0 \ANSI drop 1
89: [IF]
90: : \G postpone \ ; immediate
91: : rdrop postpone r> postpone drop ; immediate
92: : name bl word count ;
93: : bounds over + swap ;
94: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
95: : linked here over @ , swap ! ;
96: : alias create , DOES> @ EXECUTE ;
97: : defer ['] noop alias ;
98: : is state @
99: IF ' >body postpone literal postpone !
100: ELSE ' >body ! THEN ; immediate
101: : 0>= 0< 0= ;
102: : d<> rot <> -rot <> or ;
103: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
104: Variable ebuf
105: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
106: 0a Constant #lf
107: 0d Constant #cr
108:
109: [IFUNDEF] Warnings Variable Warnings [THEN]
110:
111: \ \ Number parsing 23feb93py
112:
113: \ number? number 23feb93py
114:
115: Variable dpl
116:
117: hex
118: Create bases 10 , 2 , A , 100 ,
119: \ 16 2 10 character
120:
121: \ !! protect BASE saving wrapper against exceptions
122: : getbase ( addr u -- addr' u' )
123: over c@ [char] $ - dup 4 u<
124: IF
125: cells bases + @ base ! 1 /string
126: ELSE
127: drop
128: THEN ;
129:
130: : sign? ( addr u -- addr u flag )
131: over c@ [char] - = dup >r
132: IF
133: 1 /string
134: THEN
135: r> ;
136:
137: : s>unumber? ( addr u -- ud flag )
1.78 jwilke 138: over [char] ' =
139: IF \ a ' alone is rather unusual :-)
140: drop char+ c@ 0 true EXIT
141: THEN
1.77 jwilke 142: base @ >r dpl on getbase
143: 0. 2swap
144: BEGIN ( d addr len )
145: dup >r >number dup
146: WHILE \ there are characters left
147: dup r> -
148: WHILE \ the last >number parsed something
149: dup 1- dpl ! over c@ [char] . =
150: WHILE \ the current char is '.'
151: 1 /string
152: REPEAT THEN \ there are unparseable characters left
153: 2drop false
154: ELSE
155: rdrop 2drop true
156: THEN
157: r> base ! ;
158:
159: \ ouch, this is complicated; there must be a simpler way - anton
160: : s>number? ( addr len -- d f )
161: \ converts string addr len into d, flag indicates success
162: sign? >r
163: s>unumber?
164: 0= IF
165: rdrop false
166: ELSE \ no characters left, all ok
167: r>
168: IF
169: dnegate
170: THEN
171: true
172: THEN ;
173:
174: : s>number ( addr len -- d )
175: \ don't use this, there is no way to tell success
176: s>number? drop ;
177:
178: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
179: s>number? 0=
180: IF
181: 2drop false EXIT
182: THEN
183: dpl @ dup 0< IF
184: nip
185: ELSE
186: 1+
187: THEN ;
188:
189: : number? ( string -- string 0 / n -1 / d 0> )
190: dup >r count snumber? dup if
191: rdrop
192: else
193: r> swap
194: then ;
195:
196: : number ( string -- d )
197: number? ?dup 0= abort" ?" 0<
198: IF
199: s>d
200: THEN ;
201:
202: [THEN]
1.48 anton 203:
1.52 jwilke 204: hex \ the defualt base for the cross-compiler is hex !!
1.78 jwilke 205: \ Warnings off
1.52 jwilke 206:
207: \ words that are generaly useful
208:
1.59 pazsan 209: : KB 400 * ;
1.52 jwilke 210: : >wordlist ( vocabulary-xt -- wordlist-struct )
211: also execute get-order swap >r 1- set-order r> ;
212:
213: : umax 2dup u< IF swap THEN drop ;
214: : umin 2dup u> IF swap THEN drop ;
1.1 anton 215:
1.23 pazsan 216: : string, ( c-addr u -- )
217: \ puts down string as cstring
218: dup c, here swap chars dup allot move ;
1.5 pazsan 219:
1.77 jwilke 220: : ," [char] " parse string, ;
221:
1.52 jwilke 222: : SetValue ( n -- <name> )
1.54 pazsan 223: \G Same behaviour as "Value" if the <name> is not defined
224: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 225: \G SetValue searches in the current vocabulary
1.68 jwilke 226: save-input bl word >r restore-input throw r> count
227: get-current search-wordlist
228: IF drop >r
229: \ we have to set current to be topmost context wordlist
230: get-order get-order get-current swap 1+ set-order
231: r> ['] to execute
1.74 jwilke 232: set-order
1.68 jwilke 233: ELSE Value THEN ;
1.52 jwilke 234:
235: : DefaultValue ( n -- <name> )
1.54 pazsan 236: \G Same behaviour as "Value" if the <name> is not defined
237: \G DefaultValue searches in the current vocabulary
1.52 jwilke 238: save-input bl word >r restore-input throw r> count
239: get-current search-wordlist
1.56 pazsan 240: IF bl word drop 2drop ELSE Value THEN ;
1.1 anton 241:
242: hex
243:
1.52 jwilke 244: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
245: \ for cross-compiling
246: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
247:
248: : comment? ( c-addr u -- c-addr u )
249: 2dup s" (" compare 0=
250: IF postpone (
251: ELSE 2dup s" \" compare 0= IF postpone \ THEN
252: THEN ;
253:
254: \ Begin CROSS COMPILER:
255:
1.74 jwilke 256: \ debugging
1.52 jwilke 257:
1.74 jwilke 258: 0 [IF]
259:
260: This implements debugflags for the cross compiler and the compiled
261: images. It works identical to the has-flags in the environment.
262: The debugflags are defined in a vocabluary. If the word exists and
263: its value is true, the flag is switched on.
264:
265: [THEN]
266:
1.77 jwilke 267: >CROSS
268:
1.74 jwilke 269: Vocabulary debugflags \ debug flags for cross
270: also debugflags get-order over
271: Constant debugflags-wl
272: set-order previous
273:
274: : DebugFlag
275: get-current >r debugflags-wl set-current
276: SetValue
277: r> set-current ;
278:
279: : Debug? ( adr u -- flag )
280: \G return true if debug flag is defined or switched on
281: debugflags-wl search-wordlist
282: IF EXECUTE
283: ELSE false THEN ;
284:
285: : D? ( <name> -- flag )
286: \G return true if debug flag is defined or switched on
287: \G while compiling we do not return the current value but
288: bl word count debug? ;
289:
290: : [d?]
291: \G compile the value-xt so the debug flag can be switched
292: \G the flag must exist!
293: bl word count debugflags-wl search-wordlist
294: IF compile,
295: ELSE -1 ABORT" unknown debug flag"
296: \ POSTPONE false
297: THEN ; immediate
1.54 pazsan 298:
1.77 jwilke 299: \ \ -------------------- source file
300:
301: decimal
302:
303: Variable cross-file-list
304: 0 cross-file-list !
305: Variable target-file-list
306: 0 target-file-list !
307: Variable host-file-list
308: 0 host-file-list !
309:
310: cross-file-list Value file-list
311: 0 Value source-desc
312:
313: \ file loading
314:
315: : >fl-id 1 cells + ;
316: : >fl-name 2 cells + ;
317:
318: Variable filelist 0 filelist !
319: Create NoFile ," #load-file#"
320:
321: : loadfile ( -- adr )
322: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
323:
324: : sourcefilename ( -- adr len )
325: loadfile count ;
326:
327: \ANSI : sourceline# 0 ;
328:
329: \ \ -------------------- path handling from kernel/paths.fs
330:
331: \ paths.fs path file handling 03may97jaw
332:
333: \ -Changing the search-path:
334: \ fpath+ <path> adds a directory to the searchpath
335: \ fpath= <path>|<path> makes complete now searchpath
336: \ seperator is |
337: \ .fpath displays the search path
338: \ remark I:
339: \ a ./ in the beginning of filename is expanded to the directory the
340: \ current file comes from. ./ can also be included in the search-path!
341: \ ~+/ loads from the current working directory
342:
343: \ remark II:
344: \ if there is no sufficient space for the search path increase it!
345:
346:
347: \ -Creating custom paths:
348:
349: \ It is possible to use the search mechanism on yourself.
350:
351: \ Make a buffer for the path:
352: \ create mypath 100 chars , \ maximum length (is checked)
353: \ 0 , \ real len
354: \ 100 chars allot \ space for path
355: \ use the same functions as above with:
356: \ mypath path+
357: \ mypath path=
358: \ mypath .path
359:
360: \ do a open with the search path:
361: \ open-path-file ( adr len path -- fd adr len ior )
362: \ the file is opened read-only; if the file is not found an error is generated
363:
364: \ questions to: wilke@jwdt.com
365:
366: [IFUNDEF] +place
367: : +place ( adr len adr )
368: 2dup >r >r
369: dup c@ char+ + swap move
370: r> r> dup c@ rot + swap c! ;
371: [THEN]
372:
373: [IFUNDEF] place
374: : place ( c-addr1 u c-addr2 )
375: 2dup c! char+ swap move ;
376: [THEN]
377:
378: \ if we have path handling, use this and the setup of it
379: [IFUNDEF] open-fpath-file
380:
381: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
382: sourcepath value fpath
383:
384: : also-path ( adr len path^ -- )
385: >r
386: \ len check
387: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
388: \ copy into
389: tuck r@ cell+ dup @ cell+ + swap cmove
390: \ make delimiter
391: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
392: ;
393:
394: : only-path ( adr len path^ -- )
395: dup 0 swap cell+ ! also-path ;
396:
397: : path+ ( path-addr "dir" -- ) \ gforth
398: \G Add the directory @var{dir} to the search path @var{path-addr}.
399: name rot also-path ;
400:
401: : fpath+ ( "dir" ) \ gforth
402: \G Add directory @var{dir} to the Forth search path.
403: fpath path+ ;
404:
405: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
406: \G Make a complete new search path; the path separator is |.
407: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
408: rot only-path ;
409:
410: : fpath= ( "dir1|dir2|dir3" ) \ gforth
411: \G Make a complete new Forth search path; the path separator is |.
412: fpath path= ;
413:
414: : path>counted cell+ dup cell+ swap @ ;
415:
416: : next-path ( adr len -- adr2 len2 )
417: 2dup 0 scan
418: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
419: >r 1+ -rot r@ 1- -rot
420: r> - ;
421:
422: : previous-path ( path^ -- )
423: dup path>counted
424: BEGIN tuck dup WHILE repeat ;
425:
426: : .path ( path-addr -- ) \ gforth
427: \G Display the contents of the search path @var{path-addr}.
428: path>counted
429: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
430:
431: : .fpath ( -- ) \ gforth
432: \G Display the contents of the Forth search path.
433: fpath .path ;
434:
435: : absolut-path? ( addr u -- flag ) \ gforth
436: \G A path is absolute if it starts with a / or a ~ (~ expansion),
437: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
438: \G it has a colon as second character ("C:..."). Paths simply
439: \G containing a / are not absolute!
440: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
441: over c@ [char] / = >r
442: over c@ [char] ~ = >r
443: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
444: 2 min S" ./" compare 0=
445: r> r> r> or or or ;
446:
447: Create ofile 0 c, 255 chars allot
448: Create tfile 0 c, 255 chars allot
449:
450: : pathsep? dup [char] / = swap [char] \ = or ;
451:
452: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
453:
454: : extractpath ( adr len -- adr len2 )
455: BEGIN dup WHILE 1-
456: 2dup + c@ pathsep? IF EXIT THEN
457: REPEAT ;
458:
459: : remove~+ ( -- )
460: ofile count 3 min s" ~+/" compare 0=
461: IF
462: ofile count 3 /string ofile place
463: THEN ;
464:
465: : expandtopic ( -- ) \ stack effect correct? - anton
466: \ expands "./" into an absolute name
467: ofile count 2 min s" ./" compare 0=
468: IF
469: ofile count 1 /string tfile place
470: 0 ofile c! sourcefilename extractpath ofile place
471: ofile c@ IF need/ THEN
472: tfile count over c@ pathsep? IF 1 /string THEN
473: ofile +place
474: THEN ;
475:
476: : compact.. ( adr len -- adr2 len2 )
1.85 pazsan 477: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
478: over swap
479: BEGIN dup WHILE
480: dup >r '/ scan 2dup 4 min s" /../" compare 0=
481: IF
482: dup r> - >r 4 /string over r> + 4 -
483: swap 2dup + >r move dup r> over -
484: ELSE
485: rdrop dup 1 min /string
486: THEN
487: REPEAT drop over - ;
1.77 jwilke 488:
489: : reworkdir ( -- )
490: remove~+
491: ofile count compact..
492: nip ofile c! ;
493:
494: : open-ofile ( -- fid ior )
495: \G opens the file whose name is in ofile
496: expandtopic reworkdir
497: ofile count r/o open-file ;
498:
499: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
500: 0 ofile ! >r >r ofile place need/
501: r> r> ofile +place
502: open-ofile ;
503:
504: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
505: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
506: \G If found, the resulting path and an open file descriptor
507: \G are returned. If the file is not found, @var{ior} is non-zero.
508: >r
509: 2dup absolut-path?
510: IF rdrop
511: ofile place open-ofile
512: dup 0= IF >r ofile count r> THEN EXIT
513: ELSE r> path>counted
514: BEGIN next-path dup
515: WHILE 5 pick 5 pick check-path
516: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
517: REPEAT
518: 2drop 2drop 2drop -38
519: THEN ;
520:
521: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
522: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
523: \G If found, the resulting path and an open file descriptor
524: \G are returned. If the file is not found, @var{ior} is non-zero.
525: fpath open-path-file ;
526:
527: fpath= ~+
528:
529: [THEN]
530:
531: \ \ -------------------- include require 13may99jaw
532:
533: >CROSS
534:
535: : add-included-file ( adr len -- adr )
536: dup >fl-name char+ allocate throw >r
537: file-list @ r@ ! r@ file-list !
538: r@ >fl-name place r> ;
539:
540: : included? ( c-addr u -- f )
541: file-list
542: BEGIN @ dup
543: WHILE >r 2dup r@ >fl-name count compare 0=
544: IF rdrop 2drop true EXIT THEN
545: r>
546: REPEAT
547: 2drop drop false ;
548:
549: false DebugFlag showincludedfiles
550:
551: : included1 ( fd adr u -- )
552: \ include file adr u / fd
553: \ we don't use fd with include-file, because the forth system
554: \ doesn't know the name of the file to get a nice error report
555: [d?] showincludedfiles
556: IF cr ." Including: " 2dup type ." ..." THEN
557: rot close-file throw
558: source-desc >r
559: add-included-file to source-desc
560: sourcefilename
561: ['] included catch
562: r> to source-desc
563: throw ;
564:
565: : included ( adr len -- )
566: cross-file-list to file-list
567: open-fpath-file throw
568: included1 ;
569:
570: : required ( adr len -- )
571: cross-file-list to file-list
572: open-fpath-file throw \ 2dup cr ." R:" type
573: 2dup included?
574: IF 2drop close-file throw
575: ELSE included1
576: THEN ;
577:
578: : include bl word count included ;
579:
580: : require bl word count required ;
581:
1.78 jwilke 582: 0 [IF]
583:
1.77 jwilke 584: also forth definitions previous
585:
586: : included ( adr len -- ) included ;
587:
588: : required ( adr len -- ) required ;
589:
590: : include include ;
591:
592: : require require ;
593:
1.78 jwilke 594: [THEN]
595:
1.77 jwilke 596: >CROSS
597: hex
598:
599: \ \ -------------------- Error Handling 05aug97jaw
600:
601: \ Flags
602:
603: also forth definitions \ these values may be predefined before
604: \ the cross-compiler is loaded
605:
606: false DefaultValue stack-warn \ check on empty stack at any definition
607: false DefaultValue create-forward-warn \ warn on forward declaration of created words
608:
609: previous >CROSS
610:
611: : .dec
612: base @ decimal swap . base ! ;
613:
614: : .sourcepos
615: cr sourcefilename type ." :"
616: sourceline# .dec ;
617:
618: : warnhead
619: \G display error-message head
620: \G perhaps with linenumber and filename
621: .sourcepos ." Warning: " ;
622:
623: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
624:
625: stack-warn [IF]
626: : defempty? empty? ;
627: [ELSE]
628: : defempty? ; immediate
629: [THEN]
630:
1.52 jwilke 631: \ \ GhostNames Ghosts 9may93jaw
632:
633: \ second name source to search trough list
634:
635: VARIABLE GhostNames
636: 0 GhostNames !
637:
638: : GhostName ( -- addr )
1.79 jwilke 639: align here GhostNames @ , GhostNames ! here 0 ,
1.52 jwilke 640: bl word count
641: \ 2dup type space
642: string, \ !! cfalign ?
643: align ;
644:
645: \ Ghost Builder 06oct92py
646:
647: \ <T T> new version with temp variable 10may93jaw
648:
649: VARIABLE VocTemp
650:
651: : <T get-current VocTemp ! also Ghosts definitions ;
652: : T> previous VocTemp @ set-current ;
653:
654: hex
655: 4711 Constant <fwd> 4712 Constant <res>
656: 4713 Constant <imm> 4714 Constant <do:>
1.75 jwilke 657: 4715 Constant <skip>
1.52 jwilke 658:
1.102 ! jwilke 659: \ iForth makes only immediate directly after create
! 660: \ make atonce trick! ?
1.93 pazsan 661:
1.102 ! jwilke 662: Variable atonce atonce off
1.93 pazsan 663:
1.102 ! jwilke 664: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
1.52 jwilke 665:
1.102 ! jwilke 666: : GhostHeader <fwd> , 0 , ['] NoExec , ;
1.52 jwilke 667:
668: : >magic ; \ type of ghost
669: : >link cell+ ; \ pointer where ghost is in target, or if unresolved
670: \ points to the where we have to resolve (linked-list)
671: : >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost
1.102 ! jwilke 672: : >end 3 cells + ; \ room for additional tags
1.52 jwilke 673: \ for builder (create, variable...) words the
674: \ execution symantics of words built are placed here
675:
676: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
677: Variable last-ghost \ last ghost that is created
678: Variable last-header-ghost \ last ghost definitions with header
679:
680: : Make-Ghost ( "name" -- ghost )
681: >in @ GhostName swap >in !
682: <T Create atonce @ IF immediate atonce off THEN
683: here tuck swap ! ghostheader T>
684: dup last-ghost !
685: DOES> dup executed-ghost ! >exec @ execute ;
686:
687: \ ghost words 14oct92py
688: \ changed: 10may93py/jaw
689:
690: : gfind ( string -- ghost true/1 / string false )
691: \ searches for string in word-list ghosts
1.77 jwilke 692: dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52 jwilke 693: dup IF >r >body nip r> THEN ;
694:
695: : gdiscover ( xt -- ghost true | xt false )
696: GhostNames
697: BEGIN @ dup
698: WHILE 2dup
699: cell+ @ dup >magic @ <fwd> <>
700: >r >link @ = r> and
701: IF cell+ @ nip true EXIT THEN
702: REPEAT
703: drop false ;
704:
705: VARIABLE Already
706:
707: : ghost ( "name" -- ghost )
708: Already off
1.76 jwilke 709: >in @ bl word gfind IF atonce off Already on nip EXIT THEN
1.52 jwilke 710: drop >in ! Make-Ghost ;
711:
712: : >ghostname ( ghost -- adr len )
713: GhostNames
714: BEGIN @ dup
715: WHILE 2dup cell+ @ =
716: UNTIL nip 2 cells + count
1.54 pazsan 717: ELSE 2drop
718: \ true abort" CROSS: Ghostnames inconsistent"
719: s" ?!?!?!"
1.52 jwilke 720: THEN ;
721:
1.78 jwilke 722: : .ghost ( ghost -- ) >ghostname type ;
723:
1.77 jwilke 724: \ ' >ghostname ALIAS @name
1.52 jwilke 725:
726: : forward? ( ghost -- flag )
727: >magic @ <fwd> = ;
728:
1.75 jwilke 729: : undefined? ( ghost -- flag )
730: >magic @ dup <fwd> = swap <skip> = or ;
731:
1.52 jwilke 732: \ Predefined ghosts 12dec92py
733:
734: ghost 0= drop
735: ghost branch ghost ?branch 2drop
736: ghost (do) ghost (?do) 2drop
737: ghost (for) drop
738: ghost (loop) ghost (+loop) 2drop
739: ghost (next) drop
740: ghost unloop ghost ;S 2drop
741: ghost lit ghost (compile) ghost ! 2drop drop
742: ghost (does>) ghost noop 2drop
1.97 pazsan 743: ghost (.") ghost (S") ghost (ABORT") 2drop drop
1.52 jwilke 744: ghost ' drop
745: ghost :docol ghost :doesjump ghost :dodoes 2drop drop
1.102 ! jwilke 746: ghost :dovar drop
1.52 jwilke 747: ghost over ghost = ghost drop 2drop drop
1.102 ! jwilke 748: ghost - drop
1.54 pazsan 749: ghost 2drop drop
750: ghost 2dup drop
1.52 jwilke 751:
752: \ \ Parameter for target systems 06oct92py
753:
754: \ we define it ans like...
755: wordlist Constant target-environment
756:
757: VARIABLE env-current \ save information of current dictionary to restore with environ>
758:
759: : >ENVIRON get-current env-current ! target-environment set-current ;
760: : ENVIRON> env-current @ set-current ;
1.43 pazsan 761:
1.48 anton 762: >TARGET
1.43 pazsan 763:
1.67 jwilke 764: : environment? ( adr len -- [ x ] true | false )
1.52 jwilke 765: target-environment search-wordlist
766: IF execute true ELSE false THEN ;
767:
1.67 jwilke 768: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52 jwilke 769:
1.67 jwilke 770: : has? bl word count T environment? H
1.53 jwilke 771: IF \ environment variable is present, return its value
772: ELSE \ environment variable is not present, return false
1.75 jwilke 773: false \ debug true ABORT" arg"
1.53 jwilke 774: THEN ;
1.52 jwilke 775:
776: : $has? T environment? H IF ELSE false THEN ;
1.48 anton 777:
1.54 pazsan 778: >ENVIRON get-order get-current swap 1+ set-order
779: true SetValue compiler
1.83 pazsan 780: true SetValue cross
1.54 pazsan 781: true SetValue standard-threading
782: >TARGET previous
1.52 jwilke 783:
1.77 jwilke 784: 0
785: [IFDEF] mach-file mach-file count 1 [THEN]
786: [IFDEF] machine-file machine-file 1 [THEN]
787: [IF] included hex drop
788: [ELSE] cr ." No machine description!" ABORT
789: [THEN]
1.43 pazsan 790:
1.53 jwilke 791: >ENVIRON
792:
1.54 pazsan 793: T has? ec H
794: [IF]
795: false DefaultValue relocate
796: false DefaultValue file
797: false DefaultValue OS
798: false DefaultValue prims
799: false DefaultValue floating
800: false DefaultValue glocals
801: false DefaultValue dcomps
802: false DefaultValue hash
803: false DefaultValue xconds
804: false DefaultValue header
805: [THEN]
806:
807: true DefaultValue interpreter
808: true DefaultValue ITC
809: false DefaultValue rom
1.73 jwilke 810: true DefaultValue standardthreading
1.53 jwilke 811:
1.52 jwilke 812: >TARGET
1.53 jwilke 813: s" relocate" T environment? H
814: [IF] SetValue NIL
815: [ELSE] >ENVIRON T NIL H SetValue relocate
816: [THEN]
1.43 pazsan 817:
818: >CROSS
819:
1.52 jwilke 820: \ \ Create additional parameters 19jan95py
1.19 pazsan 821:
1.71 jwilke 822: \ currently cross only works for host machines with address-unit-bits
823: \ eual to 8 because of s! and sc!
824: \ but I start to query the environment just to modularize a little bit
825:
826: : check-address-unit-bits ( -- )
827: \ s" ADDRESS-UNIT-BITS" environment?
828: \ IF 8 <> ELSE true THEN
829: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
830:
831: \ shit, this doesn't work because environment? is only defined for
832: \ gforth.fi and not kernl???.fi
833: ;
834:
835: check-address-unit-bits
836: 8 Constant bits/byte \ we define: byte is address-unit
837:
838: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 839: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 840:
1.19 pazsan 841: T
1.71 jwilke 842: NIL Constant TNIL
843: cell Constant tcell
844: cell<< Constant tcell<<
845: cell>bit Constant tcell>bit
846: bits/char Constant tbits/char
847: bits/char H bits/byte T /
848: Constant tchar
849: float Constant tfloat
850: 1 bits/char lshift Constant tmaxchar
851: [IFUNDEF] bits/byte
852: 8 Constant tbits/byte
853: [ELSE]
854: bits/byte Constant tbits/byte
855: [THEN]
1.19 pazsan 856: H
1.81 pazsan 857: tbits/char bits/byte / Constant tbyte
1.71 jwilke 858:
1.19 pazsan 859:
1.48 anton 860: \ Variables 06oct92py
861:
862: Variable image
863: Variable tlast TNIL tlast ! \ Last name field
864: Variable tlastcfa \ Last code field
865: Variable tdoes \ Resolve does> calls
866: Variable bit$
1.52 jwilke 867:
868: \ statistics 10jun97jaw
869:
870: Variable headers-named 0 headers-named !
871: Variable user-vars 0 user-vars !
872:
1.67 jwilke 873: : target>bitmask-size ( u1 -- u2 )
874: 1- tcell>bit rshift 1+ ;
875:
1.102 ! jwilke 876: : allocatetarget ( size --- adr )
1.67 jwilke 877: dup allocate ABORT" CROSS: No memory for target"
878: swap over swap erase ;
1.52 jwilke 879:
1.54 pazsan 880: \ \ memregion.fs
1.52 jwilke 881:
882:
883: Variable last-defined-region \ pointer to last defined region
884: Variable region-link \ linked list with all regions
885: Variable mirrored-link \ linked list for mirrored regions
886: 0 dup mirrored-link ! region-link !
887:
888:
1.67 jwilke 889: : >rname 6 cells + ;
890: : >rbm 5 cells + ;
891: : >rmem 4 cells + ;
892: : >rlink 3 cells + ;
1.52 jwilke 893: : >rdp 2 cells + ;
894: : >rlen cell+ ;
895: : >rstart ;
896:
897:
898: : region ( addr len -- ) \G create a new region
899: \ check whether predefined region exists
900: save-input bl word find >r >r restore-input throw r> r> 0=
901: IF \ make region
902: drop
903: save-input create restore-input throw
904: here last-defined-region !
905: over ( startaddr ) , ( length ) , ( dp ) ,
1.67 jwilke 906: region-link linked 0 , 0 , bl word count string,
1.52 jwilke 907: ELSE \ store new parameters in region
908: bl word drop
909: >body >r r@ last-defined-region !
1.67 jwilke 910: r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52 jwilke 911: THEN ;
912:
913: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67 jwilke 914: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 915:
916: : extent ( region -- startaddr len ) \G returns the really used area
1.67 jwilke 917: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 918:
919: : area ( region -- startaddr totallen ) \G returns the total area
1.79 jwilke 920: dup >rstart @ swap >rlen @ ;
1.52 jwilke 921:
922: : mirrored \G mark a region as mirrored
923: mirrored-link
1.68 jwilke 924: align linked last-defined-region @ , ;
1.52 jwilke 925:
1.67 jwilke 926: : .addr ( u -- )
927: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 928: base @ >r hex
929: tcell 2 u>
1.77 jwilke 930: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 931: ELSE s>d <# # # # # # #> type
932: THEN r> base ! ;
933:
934: : .regions \G display region statistic
935:
936: \ we want to list the regions in the right order
937: \ so first collect all regions on stack
938: 0 region-link @
939: BEGIN dup WHILE dup @ REPEAT drop
940: BEGIN dup
1.67 jwilke 941: WHILE cr
942: 0 >rlink - >r
943: r@ >rname count tuck type
1.52 jwilke 944: 12 swap - 0 max spaces space
1.67 jwilke 945: ." Start: " r@ >rstart @ dup .addr space
946: ." End: " r@ >rlen @ + .addr space
947: ." DP: " r> >rdp @ .addr
1.52 jwilke 948: REPEAT drop
1.53 jwilke 949: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 950: cr ." Mirrored:"
951: mirrored-link @
952: BEGIN dup
1.67 jwilke 953: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 954: REPEAT drop cr
955: ;
956:
957: \ -------- predefined regions
958:
959: 0 0 region address-space
960: \ total memory addressed and used by the target system
961:
962: 0 0 region dictionary
963: \ rom area for the compiler
964:
1.53 jwilke 965: T has? rom H
1.52 jwilke 966: [IF]
967: 0 0 region ram-dictionary mirrored
968: \ ram area for the compiler
969: [ELSE]
970: ' dictionary ALIAS ram-dictionary
971: [THEN]
972:
973: 0 0 region return-stack
974:
975: 0 0 region data-stack
976:
977: 0 0 region tib-region
978:
979: ' dictionary ALIAS rom-dictionary
980:
981:
1.102 ! jwilke 982: : setup-target ( -- ) \G initialize targets memory space
1.53 jwilke 983: s" rom" T $has? H
1.52 jwilke 984: IF \ check for ram and rom...
1.72 jwilke 985: \ address-space area nip 0<>
1.67 jwilke 986: ram-dictionary area nip 0<>
987: rom-dictionary area nip 0<>
1.72 jwilke 988: and 0=
1.52 jwilke 989: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
990: THEN
991: address-space area nip
992: IF
993: address-space area
994: ELSE
995: dictionary area
996: THEN
1.67 jwilke 997: nip 0=
1.52 jwilke 998: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 999:
1000: \ allocate target for each region
1001: region-link
1002: BEGIN @ dup
1003: WHILE dup
1004: 0 >rlink - >r
1005: r@ >rlen @
1006: IF \ allocate mem
1007: r@ >rlen @ dup
1008:
1009: allocatetarget dup image !
1010: r@ >rmem !
1011:
1012: target>bitmask-size allocatetarget
1.72 jwilke 1013: dup bit$ !
1.67 jwilke 1014: r> >rbm !
1015:
1016: ELSE r> drop THEN
1.72 jwilke 1017: REPEAT drop ;
1018:
1.102 ! jwilke 1019: \ MakeKernal 22feb99jaw
1.72 jwilke 1020:
1021: : makekernel ( targetsize -- targetsize )
1022: dup dictionary >rlen ! setup-target ;
1023:
1024: >MINIMAL
1025: : makekernel makekernel ;
1026: >CROSS
1.52 jwilke 1027:
1.54 pazsan 1028: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1029:
1030: \ second value is here to store some maximal value for statistics
1031: \ tempdp is also embedded here but has nothing to do with rom support
1032: \ (needs switched dp)
1033:
1034: variable tempdp 0 , \ temporary dp for resolving
1035: variable tempdp-save
1036:
1037: 0 [IF]
1038: variable romdp 0 , \ Dictionary-Pointer for ramarea
1039: variable ramdp 0 , \ Dictionary-Pointer for romarea
1040:
1041: \
1042: variable sramdp \ start of ram-area for forth
1043: variable sromdp \ start of rom-area for forth
1044:
1045: [THEN]
1046:
1047:
1048: 0 value tdp
1049: variable fixed \ flag: true: no automatic switching
1050: \ false: switching is done automatically
1051:
1052: \ Switch-Policy:
1053: \
1054: \ a header is always compiled into rom
1055: \ after a created word (create and variable) compilation goes to ram
1056: \
1057: \ Be careful: If you want to make the data behind create into rom
1058: \ you have to put >rom before create!
1059:
1060: variable constflag constflag off
1061:
1.67 jwilke 1062: : activate ( region -- )
1063: \G next code goes to this region
1064: >rdp to tdp ;
1065:
1.52 jwilke 1066: : (switchram)
1.53 jwilke 1067: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1068: ram-dictionary activate ;
1.52 jwilke 1069:
1070: : switchram
1071: constflag @
1072: IF constflag off ELSE (switchram) THEN ;
1073:
1074: : switchrom
1.67 jwilke 1075: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1076:
1077: : >tempdp ( addr -- )
1078: tdp tempdp-save ! tempdp to tdp tdp ! ;
1079: : tempdp> ( -- )
1080: tempdp-save @ to tdp ;
1081:
1082: : >ram fixed off (switchram) fixed on ;
1083: : >rom fixed off switchrom fixed on ;
1084: : >auto fixed off switchrom ;
1085:
1086:
1087:
1088: \ : romstart dup sromdp ! romdp ! ;
1089: \ : ramstart dup sramdp ! ramdp ! ;
1090:
1.67 jwilke 1091: \ default compilation goes to rom
1.52 jwilke 1092: \ when romable support is off, only the rom switch is used (!!)
1093: >auto
1094:
1.48 anton 1095: : there tdp @ ;
1096:
1.52 jwilke 1097: >TARGET
1.48 anton 1098:
1.52 jwilke 1099: \ \ Target Memory Handling
1.1 anton 1100:
1101: \ Byte ordering and cell size 06oct92py
1102:
1.19 pazsan 1103: : cell+ tcell + ;
1104: : cells tcell<< lshift ;
1.71 jwilke 1105: : chars tchar * ;
1106: : char+ tchar + ;
1.19 pazsan 1107: : floats tfloat * ;
1.6 anton 1108:
1.1 anton 1109: >CROSS
1.19 pazsan 1110: : cell/ tcell<< rshift ;
1.1 anton 1111: >TARGET
1112: 20 CONSTANT bl
1.52 jwilke 1113: \ TNIL Constant NIL
1.1 anton 1114:
1115: >CROSS
1116:
1.20 pazsan 1117: bigendian
1118: [IF]
1.52 jwilke 1119: : S! ( n addr -- ) >r s>d r> tcell bounds swap 1-
1.20 pazsan 1120: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.52 jwilke 1121: : S@ ( addr -- n ) >r 0 0 r> tcell bounds
1.20 pazsan 1122: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.57 pazsan 1123: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1124: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1125: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1126: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1127: [ELSE]
1.52 jwilke 1128: : S! ( n addr -- ) >r s>d r> tcell bounds
1.20 pazsan 1129: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.52 jwilke 1130: : S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1.20 pazsan 1131: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.57 pazsan 1132: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1133: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1134: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1135: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1136: [THEN]
1137:
1.67 jwilke 1138: : taddr>region ( taddr -- region | 0 )
1139: \G finds for a target-address the correct region
1140: \G returns 0 if taddr is not in range of a target memory region
1141: region-link
1142: BEGIN @ dup
1143: WHILE dup >r
1144: 0 >rlink - >r
1145: r@ >rlen @
1146: IF dup r@ borders within
1147: IF r> r> drop nip EXIT THEN
1148: THEN
1149: r> drop
1150: r>
1151: REPEAT
1152: 2drop 0 ;
1153:
1154: : (>regionimage) ( taddr -- 'taddr )
1155: dup
1156: \ find region we want to address
1157: taddr>region dup 0= ABORT" Address out of range!"
1158: >r
1159: \ calculate offset in region
1160: r@ >rstart @ -
1161: \ add regions real address in our memory
1162: r> >rmem @ + ;
1163:
1.1 anton 1164: \ Bit string manipulation 06oct92py
1165: \ 9may93jaw
1166: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1167: : bits ( n -- n ) chars Bittable + c@ ;
1168:
1169: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1170: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1171: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1172:
1.84 jwilke 1173: : (relon) ( taddr -- )
1174: [ [IFDEF] fd-relocation-table ]
1175: s" +" fd-relocation-table write-file throw
1176: dup s>d <# #s #> fd-relocation-table write-line throw
1177: [ [THEN] ]
1178: bit$ @ swap cell/ +bit ;
1179:
1180: : (reloff) ( taddr -- )
1181: [ [IFDEF] fd-relocation-table ]
1182: s" -" fd-relocation-table write-file throw
1183: dup s>d <# #s #> fd-relocation-table write-line throw
1184: [ [THEN] ]
1185: bit$ @ swap cell/ -bit ;
1.67 jwilke 1186:
1187: : (>image) ( taddr -- absaddr ) image @ + ;
1188:
1189: DEFER >image
1190: DEFER relon
1191: DEFER reloff
1192: DEFER correcter
1193:
1194: T has? relocate H
1195: [IF]
1196: ' (relon) IS relon
1197: ' (reloff) IS reloff
1198: ' (>image) IS >image
1199: [ELSE]
1200: ' drop IS relon
1201: ' drop IS reloff
1.68 jwilke 1202: ' (>regionimage) IS >image
1.67 jwilke 1203: [THEN]
1.1 anton 1204:
1205: \ Target memory access 06oct92py
1206:
1207: : align+ ( taddr -- rest )
1.48 anton 1208: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1209: : cfalign+ ( taddr -- rest )
1.39 pazsan 1210: \ see kernel.fs:cfaligned
1.43 pazsan 1211: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1212:
1213: >TARGET
1214: : aligned ( taddr -- ta-addr ) dup align+ + ;
1215: \ assumes cell alignment granularity (as GNU C)
1216:
1.22 anton 1217: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1218: \ see kernel.fs
1.22 anton 1219: dup cfalign+ + ;
1220:
1.52 jwilke 1221: : @ ( taddr -- w ) >image S@ ;
1222: : ! ( w taddr -- ) >image S! ;
1.57 pazsan 1223: : c@ ( taddr -- char ) >image Sc@ ;
1224: : c! ( char taddr -- ) >image Sc! ;
1.7 anton 1225: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1226: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1227:
1228: \ Target compilation primitives 06oct92py
1229: \ included A! 16may93jaw
1230:
1231: : here ( -- there ) there ;
1232: : allot ( n -- ) tdp +! ;
1.78 jwilke 1233: : , ( w -- ) T here H tcell T allot ! H ;
1234: : c, ( char -- ) T here H tchar T allot c! H ;
1235: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1236: : cfalign ( -- )
1.78 jwilke 1237: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1238:
1.71 jwilke 1239: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1240: : A! swap >address swap dup relon T ! H ;
1241: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1242:
1243: >CROSS
1244:
1.52 jwilke 1245: : tcmove ( source dest len -- )
1246: \G cmove in target memory
1.57 pazsan 1247: tchar * bounds
1.52 jwilke 1248: ?DO dup T c@ H I T c! H 1+
1.57 pazsan 1249: tchar +LOOP drop ;
1.1 anton 1250:
1.67 jwilke 1251: \ \ Load Assembler
1252:
1.1 anton 1253: >TARGET
1.74 jwilke 1254: H also Forth definitions
1.1 anton 1255:
1.77 jwilke 1256: : X bl word count [ ' target >wordlist ] Literal search-wordlist
1.52 jwilke 1257: IF state @ IF compile,
1258: ELSE execute THEN
1.77 jwilke 1259: ELSE -1 ABORT" Cross: access method not supported!"
1260: THEN ; immediate
1.1 anton 1261:
1.52 jwilke 1262: [IFDEF] asm-include asm-include [THEN] hex
1.1 anton 1263:
1.52 jwilke 1264: previous
1265: >CROSS H
1.1 anton 1266:
1.52 jwilke 1267: \ \ -------------------- Compiler Plug Ins 01aug97jaw
1.1 anton 1268:
1.102 ! jwilke 1269: \ Compiler States
! 1270:
! 1271: Variable comp-state
! 1272: 0 Constant interpreting
! 1273: 1 Constant compiling
! 1274: 2 Constant resolving
! 1275: 3 Constant assembling
! 1276:
! 1277: Defer lit, ( n -- )
! 1278: Defer alit, ( n -- )
! 1279:
! 1280: Defer branch, ( target-addr -- ) \ compiles a branch
! 1281: Defer ?branch, ( target-addr -- ) \ compiles a ?branch
! 1282: Defer branchmark, ( -- branch-addr ) \ reserves room for a branch
! 1283: Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
! 1284: Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
! 1285: Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
! 1286: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
! 1287: Defer branchfrom, ( -- ) \ ?!
! 1288: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
! 1289:
! 1290: Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position
! 1291: Defer colonmark, ( -- addr ) \ marks a colon call
! 1292: Defer colon-resolve ( tcfa addr -- )
! 1293:
! 1294: Defer addr-resolve ( target-addr addr -- )
! 1295: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
! 1296:
! 1297: Defer do, ( -- do-token )
! 1298: Defer ?do, ( -- ?do-token )
! 1299: Defer for, ( -- for-token )
! 1300: Defer loop, ( do-token / ?do-token -- )
! 1301: Defer +loop, ( do-token / ?do-token -- )
! 1302: Defer next, ( for-token )
! 1303:
! 1304: [IFUNDEF] ca>native
! 1305: defer ca>native
! 1306: [THEN]
! 1307:
1.52 jwilke 1308: >TARGET
1309: DEFER >body \ we need the system >body
1310: \ and the target >body
1311: >CROSS
1312: T 2 cells H VALUE xt>body
1.54 pazsan 1313: DEFER doprim, \ compiles start of a primitive
1314: DEFER docol, \ compiles start of a colon definition
1.52 jwilke 1315: DEFER doer,
1316: DEFER fini, \ compiles end of definition ;s
1317: DEFER doeshandler,
1318: DEFER dodoes,
1319:
1320: DEFER ]comp \ starts compilation
1321: DEFER comp[ \ ends compilation
1322:
1.102 ! jwilke 1323: : (cc) T a, H ; ' (cc) IS colon,
1.54 pazsan 1324:
1.102 ! jwilke 1325: : (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) IS colon-resolve
1.54 pazsan 1326: : (ar) T ! H ; ' (ar) IS addr-resolve
1327: : (dr) ( ghost res-pnt target-addr addr )
1328: >tempdp drop over
1329: dup >magic @ <do:> =
1330: IF doer,
1331: ELSE dodoes,
1332: THEN
1333: tempdp> ; ' (dr) IS doer-resolve
1334:
1335: : (cm) ( -- addr )
1336: T here align H
1.102 ! jwilke 1337: -1 colon, ; ' (cm) IS colonmark,
1.1 anton 1338:
1.52 jwilke 1339: >TARGET
1.102 ! jwilke 1340: : compile, colon, ;
1.52 jwilke 1341: >CROSS
1.1 anton 1342:
1.102 ! jwilke 1343: \ resolve structure
! 1344:
! 1345: : >next ; \ link to next field
! 1346: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
! 1347: : >taddr cell+ cell+ ;
! 1348: : >ghost 3 cells + ;
! 1349: : >file 4 cells + ;
! 1350: : >line 5 cells + ;
! 1351:
! 1352: : (refered) ( ghost addr tag -- )
! 1353: \G creates a reference to ghost at address taddr
! 1354: rot >r here r@ >link @ , r> >link !
! 1355: ( taddr tag ) ,
! 1356: ( taddr ) ,
! 1357: last-header-ghost @ ,
! 1358: loadfile ,
! 1359: sourceline# ,
! 1360: ;
! 1361:
1.52 jwilke 1362: : refered ( ghost tag -- )
1.53 jwilke 1363: \G creates a resolve structure
1.54 pazsan 1364: T here aligned H swap (refered)
1365: ;
1366:
1367: : killref ( addr ghost -- )
1368: \G kills a forward reference to ghost at position addr
1369: \G this is used to eleminate a :dovar refence after making a DOES>
1370: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1371: swap >r >link
1372: BEGIN dup @ dup ( addr last this )
1373: WHILE dup >taddr @ r@ =
1374: IF @ over !
1375: ELSE nip THEN
1376: REPEAT rdrop 2drop
1.53 jwilke 1377: ;
1.48 anton 1378:
1.52 jwilke 1379: Defer resolve-warning
1.1 anton 1380:
1.52 jwilke 1381: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1382: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1383:
1.52 jwilke 1384: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1385: over warnhead .ghost dup ." is referenced in "
1386: >ghost @ .ghost ;
1.1 anton 1387:
1.52 jwilke 1388: \ ' reswarn-test IS resolve-warning
1389:
1.1 anton 1390: \ resolve 14oct92py
1391:
1.54 pazsan 1392: : resolve-loop ( ghost resolve-list tcfa -- )
1393: >r
1394: BEGIN dup WHILE
1395: \ dup >tag @ 2 = IF reswarn-forward THEN
1396: resolve-warning
1397: r@ over >taddr @
1398: 2 pick >tag @
1399: CASE 0 OF colon-resolve ENDOF
1400: 1 OF addr-resolve ENDOF
1401: 2 OF doer-resolve ENDOF
1402: ENDCASE
1403: @ \ next list element
1404: REPEAT 2drop rdrop
1405: ;
1.52 jwilke 1406:
1407: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1408: \ >r dup >link @
1409: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1410:
1411: \ exists 9may93jaw
1412:
1.52 jwilke 1413: Variable TWarnings
1414: TWarnings on
1415: Variable Exists-Warnings
1416: Exists-Warnings on
1417:
1.1 anton 1418: : exists ( ghost tcfa -- )
1419: over GhostNames
1420: BEGIN @ dup
1421: WHILE 2dup cell+ @ =
1422: UNTIL
1.52 jwilke 1423: 2 cells + count
1424: TWarnings @ Exists-Warnings @ and
1425: IF warnhead type ." exists"
1426: ELSE 2drop THEN
1427: drop swap >link !
1.24 pazsan 1428: ELSE true abort" CROSS: Ghostnames inconsistent "
1.1 anton 1429: THEN ;
1430:
1431: : resolve ( ghost tcfa -- )
1.54 pazsan 1432: \G resolve referencies to ghost with tcfa
1433: \ is ghost resolved?, second resolve means another definition with the
1434: \ same name
1.75 jwilke 1435: over undefined? 0= IF exists EXIT THEN
1.54 pazsan 1436: \ get linked-list
1437: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1438: \ mark ghost as resolved
1439: dup r@ >link ! <res> r@ >magic !
1440: \ loop through forward referencies
1441: r> -rot
1442: comp-state @ >r Resolving comp-state !
1443: resolve-loop
1444: r> comp-state !
1445:
1446: ['] noop IS resolve-warning
1.52 jwilke 1447: ;
1.1 anton 1448:
1449: \ gexecute ghost, 01nov92py
1450:
1.102 ! jwilke 1451: : is-forward ( ghost -- )
! 1452: colonmark, 0 (refered) ; \ compile space for call
! 1453:
! 1454: : is-resolved ( ghost -- )
! 1455: >link @ colon, ; \ compile-call
! 1456:
1.52 jwilke 1457: : gexecute ( ghost -- )
1.102 ! jwilke 1458: dup @ <fwd> = IF is-forward ELSE is-resolved THEN ;
1.52 jwilke 1459:
1460: : addr, ( ghost -- )
1.102 ! jwilke 1461: dup @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52 jwilke 1462:
1463: \ !! : ghost, ghost gexecute ;
1.1 anton 1464:
1465: \ .unresolved 11may93jaw
1466:
1467: variable ResolveFlag
1468:
1469: \ ?touched 11may93jaw
1470:
1.52 jwilke 1471: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1472: 0 <> and ;
1473:
1.53 jwilke 1474: : .forwarddefs ( ghost -- )
1475: ." appeared in:"
1476: >link
1477: BEGIN @ dup
1478: WHILE cr 5 spaces
1.78 jwilke 1479: dup >ghost @ .ghost
1.53 jwilke 1480: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1481: ." line " dup >line @ .dec
1482: REPEAT
1483: drop ;
1484:
1.1 anton 1485: : ?resolved ( ghostname -- )
1486: dup cell+ @ ?touched
1.53 jwilke 1487: IF dup
1488: cell+ cell+ count cr type ResolveFlag on
1489: cell+ @ .forwarddefs
1490: ELSE drop
1491: THEN ;
1.1 anton 1492:
1493: : .unresolved ( -- )
1494: ResolveFlag off cr ." Unresolved: "
1495: Ghostnames
1496: BEGIN @ dup
1497: WHILE dup ?resolved
1.10 anton 1498: REPEAT drop ResolveFlag @
1499: IF
1.48 anton 1500: -1 abort" Unresolved words!"
1.10 anton 1501: ELSE
1502: ." Nothing!"
1503: THEN
1504: cr ;
1.1 anton 1505:
1.52 jwilke 1506: : .stats
1507: base @ >r decimal
1508: cr ." named Headers: " headers-named @ .
1509: r> base ! ;
1510:
1.79 jwilke 1511: >MINIMAL
1512:
1513: : .unresolved .unresolved ;
1514:
1.1 anton 1515: >CROSS
1516: \ Header states 12dec92py
1517:
1.102 ! jwilke 1518: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1.90 pazsan 1519: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1520: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 1521:
1522: VARIABLE ^imm
1523:
1524: >TARGET
1.102 ! jwilke 1525: : immediate 40 flag!
1.18 pazsan 1526: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 1527: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1528: <imm> ^imm @ ! ;
1.102 ! jwilke 1529: : restrict 20 flag! ;
1.52 jwilke 1530:
1.54 pazsan 1531: : isdoer
1532: \G define a forth word as doer, this makes obviously only sence on
1533: \G forth processors such as the PSC1000
1534: <do:> last-header-ghost @ >magic ! ;
1.1 anton 1535: >CROSS
1536:
1537: \ Target Header Creation 01nov92py
1538:
1.52 jwilke 1539: >TARGET
1.1 anton 1540: : string, ( addr count -- )
1.102 ! jwilke 1541: dup T c, H bounds ?DO I c@ T c, H LOOP ;
! 1542:
1.89 anton 1543: : lstring, ( addr count -- )
1.102 ! jwilke 1544: dup T , H bounds ?DO I c@ T c, H LOOP ;
! 1545:
1.89 anton 1546: : name, ( "name" -- ) bl word count T lstring, cfalign H ;
1.1 anton 1547: : view, ( -- ) ( dummy ) ;
1.52 jwilke 1548: >CROSS
1.1 anton 1549:
1.25 pazsan 1550: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
1551:
1.55 pazsan 1552: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 1553: \ contains the file-id of the documentation file
1554:
1.40 pazsan 1555: : T-\G ( -- )
1.25 pazsan 1556: source >in @ /string doc-file-id write-line throw
1.40 pazsan 1557: postpone \ ;
1.25 pazsan 1558:
1.39 pazsan 1559: Variable to-doc to-doc on
1.25 pazsan 1560:
1561: : cross-doc-entry ( -- )
1562: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1563: IF
1564: s" " doc-file-id write-line throw
1565: s" make-doc " doc-file-id write-file throw
1.102 ! jwilke 1566:
! 1567: tlast @ >image count 1F and doc-file-id write-file throw
1.25 pazsan 1568: >in @
1569: [char] ( parse 2drop
1570: [char] ) parse doc-file-id write-file throw
1571: s" )" doc-file-id write-file throw
1572: [char] \ parse 2drop
1.40 pazsan 1573: T-\G
1.25 pazsan 1574: >in !
1.39 pazsan 1575: THEN ;
1.25 pazsan 1576:
1.28 pazsan 1577: \ Target TAGS creation
1578:
1.39 pazsan 1579: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28 pazsan 1580: \ contains the file-id of the tags file
1581:
1582: Create tag-beg 2 c, 7F c, bl c,
1583: Create tag-end 2 c, bl c, 01 c,
1584: Create tag-bof 1 c, 0C c,
1585:
1586: 2variable last-loadfilename 0 0 last-loadfilename 2!
1587:
1588: : put-load-file-name ( -- )
1.77 jwilke 1589: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 1590: IF
1591: tag-bof count tag-file-id write-line throw
1.31 anton 1592: sourcefilename 2dup
1.28 pazsan 1593: tag-file-id write-file throw
1594: last-loadfilename 2!
1595: s" ,0" tag-file-id write-line throw
1596: THEN ;
1597:
1598: : cross-tag-entry ( -- )
1599: tlast @ 0<> \ not an anonymous (i.e. noname) header
1600: IF
1601: put-load-file-name
1602: source >in @ min tag-file-id write-file throw
1603: tag-beg count tag-file-id write-file throw
1.77 jwilke 1604: tlast @ >image count 1F and tag-file-id write-file throw
1.28 pazsan 1605: tag-end count tag-file-id write-file throw
1.31 anton 1606: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 1607: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1608: s" ,0" tag-file-id write-line throw
1609: base !
1610: THEN ;
1611:
1.43 pazsan 1612: \ Check for words
1613:
1614: Defer skip? ' false IS skip?
1615:
1.75 jwilke 1616: : skipdef ( <name> -- )
1.79 jwilke 1617: \G skip definition of an undefined word in undef-words and
1618: \G all-words mode
1.75 jwilke 1619: ghost dup forward?
1620: IF >magic <skip> swap !
1621: ELSE drop THEN ;
1622:
1.77 jwilke 1623: : tdefined? ( -- flag ) \ name
1.75 jwilke 1624: ghost undefined? 0= ;
1625:
1626: : defined2? ( -- flag ) \ name
1627: \G return true for anything else than forward, even for <skip>
1628: \G that's what we want
1.52 jwilke 1629: ghost forward? 0= ;
1.43 pazsan 1630:
1.79 jwilke 1631: : forced? ( -- flag ) \ name
1632: \G return ture if it is a foreced skip with defskip
1633: ghost >magic @ <skip> = ;
1634:
1.43 pazsan 1635: : needed? ( -- flag ) \ name
1.48 anton 1636: \G returns a false flag when
1637: \G a word is not defined
1638: \G a forward reference exists
1639: \G so the definition is not skipped!
1640: bl word gfind
1.75 jwilke 1641: IF dup undefined?
1.48 anton 1642: nip
1643: 0=
1644: ELSE drop true THEN ;
1.43 pazsan 1645:
1.44 pazsan 1646: : doer? ( -- flag ) \ name
1647: ghost >magic @ <do:> = ;
1648:
1.43 pazsan 1649: : skip-defs ( -- )
1650: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
1651:
1.28 pazsan 1652: \ Target header creation
1653:
1.54 pazsan 1654: Variable NoHeaderFlag
1655: NoHeaderFlag off
1.1 anton 1656:
1.54 pazsan 1657: : 0.r ( n1 n2 -- )
1658: base @ >r hex
1659: 0 swap <# 0 ?DO # LOOP #> type
1660: r> base ! ;
1.84 jwilke 1661:
1662: : .sym ( adr len -- )
1663: \G escapes / and \ to produce sed output
1.52 jwilke 1664: bounds
1665: DO I c@ dup
1.77 jwilke 1666: CASE [char] / OF drop ." \/" ENDOF
1667: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 1668: dup OF emit ENDOF
1669: ENDCASE
1.54 pazsan 1670: LOOP ;
1.52 jwilke 1671:
1.43 pazsan 1672: : (Theader ( "name" -- ghost )
1.54 pazsan 1673: \ >in @ bl word count type 2 spaces >in !
1674: \ wordheaders will always be compiled to rom
1675: switchrom
1676: \ build header in target
1677: NoHeaderFlag @
1678: IF NoHeaderFlag off
1679: ELSE
1680: T align H view,
1.78 jwilke 1681: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 1682: 1 headers-named +! \ Statistic
1683: >in @ T name, H >in !
1684: THEN
1685: T cfalign here H tlastcfa !
1.84 jwilke 1686: \ Old Symbol table sed-script
1.54 pazsan 1687: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.78 jwilke 1688: ghost
1.84 jwilke 1689: \ output symbol table to extra file
1690: [ [IFDEF] fd-symbol-table ]
1691: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
1692: s" :" fd-symbol-table write-file throw
1693: dup >ghostname fd-symbol-table write-line throw
1694: [ [THEN] ]
1.54 pazsan 1695: dup Last-Header-Ghost !
1696: dup >magic ^imm ! \ a pointer for immediate
1697: Already @
1698: IF dup >end tdoes !
1699: ELSE 0 tdoes !
1700: THEN
1.102 ! jwilke 1701: 80 flag!
1.54 pazsan 1702: cross-doc-entry cross-tag-entry ;
1.1 anton 1703:
1704: VARIABLE ;Resolve 1 cells allot
1.52 jwilke 1705: \ this is the resolver information from ":"
1706: \ resolving is done by ";"
1.1 anton 1707:
1.11 pazsan 1708: : Theader ( "name" -- ghost )
1709: (THeader dup there resolve 0 ;Resolve ! ;
1.1 anton 1710:
1711: >TARGET
1712: : Alias ( cfa -- ) \ name
1.43 pazsan 1713: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1714: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1715: IF
1.53 jwilke 1716: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43 pazsan 1717: THEN
1.102 ! jwilke 1718: (THeader over resolve T A, H 80 flag! ;
1.42 pazsan 1719: : Alias: ( cfa -- ) \ name
1.43 pazsan 1720: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1721: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1722: IF
1.53 jwilke 1723: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43 pazsan 1724: THEN
1725: ghost tuck swap resolve <do:> swap >magic ! ;
1.64 pazsan 1726:
1727: Variable prim#
1728: : first-primitive ( n -- ) prim# ! ;
1729: : Primitive ( -- ) \ name
1730: prim# @ T Alias H -1 prim# +! ;
1.1 anton 1731: >CROSS
1732:
1733: \ Conditionals and Comments 11may93jaw
1734:
1735: : ;Cond
1736: postpone ;
1737: swap ! ; immediate
1738:
1739: : Cond: ( -- ) \ name {code } ;
1740: atonce on
1741: ghost
1742: >exec
1743: :NONAME ;
1744:
1745: : restrict? ( -- )
1746: \ aborts on interprete state - ae
1747: state @ 0= ABORT" CROSS: Restricted" ;
1748:
1749: : Comment ( -- )
1750: >in @ atonce on ghost swap >in ! ' swap >exec ! ;
1751:
1752: Comment ( Comment \
1753:
1754: \ compile 10may93jaw
1755:
1756: : compile ( -- ) \ name
1757: restrict?
1.13 pazsan 1758: bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1 anton 1759: 0> ( immediate? )
1760: IF >exec @ compile,
1761: ELSE postpone literal postpone gexecute THEN ;
1762: immediate
1763:
1.52 jwilke 1764: : [G']
1765: \G ticks a ghost and returns its address
1766: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1767: state @
1768: IF postpone literal
1769: THEN ; immediate
1770:
1771: : ghost>cfa
1.75 jwilke 1772: dup undefined? ABORT" CROSS: forward " >link @ ;
1.52 jwilke 1773:
1774: >TARGET
1775:
1776: : ' ( -- cfa )
1777: \ returns the target-cfa of a ghost
1778: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1779: ghost>cfa ;
1780:
1781: Cond: ['] T ' H alit, ;Cond
1782:
1783: >CROSS
1784:
1785: : [T']
1786: \ returns the target-cfa of a ghost, or compiles it as literal
1787: postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42 pazsan 1788:
1.52 jwilke 1789: \ \ threading modell 13dec92py
1790: \ modularized 14jun97jaw
1791:
1792: : fillcfa ( usedcells -- )
1.78 jwilke 1793: T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 1794:
1795: : (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H
1796:
1.102 ! jwilke 1797: : (doer,) ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ; ' (doer,) IS doer,
1.52 jwilke 1798:
1799: : (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol,
1800:
1801: : (doprim,) ( -- )
1802: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
1803:
1804: : (doeshandler,) ( -- )
1805: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler,
1806:
1807: : (dodoes,) ( does-action-ghost -- )
1808: ]comp [G'] :dodoes gexecute comp[
1809: addr,
1810: T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes,
1811:
1812: : (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS lit,
1813:
1.67 jwilke 1814: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 1815: \ this is just for convenience, so we don't have to define alit,
1816: \ seperately for embedded systems....
1817: T has? relocate H
1.67 jwilke 1818: [IF]
1.66 pazsan 1819: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) IS alit,
1.67 jwilke 1820: [ELSE]
1821: : (alit,) ( n -- ) lit, ; ' (alit,) IS alit,
1822: [THEN]
1.52 jwilke 1823:
1824: : (fini,) compile ;s ; ' (fini,) IS fini,
1.42 pazsan 1825:
1.43 pazsan 1826: [IFUNDEF] (code)
1827: Defer (code)
1828: Defer (end-code)
1829: [THEN]
1830:
1.1 anton 1831: >TARGET
1.43 pazsan 1832: : Code
1.52 jwilke 1833: defempty?
1.48 anton 1834: (THeader there resolve
1.53 jwilke 1835: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 1836: doprim,
1.48 anton 1837: [THEN]
1838: depth (code) ;
1.43 pazsan 1839:
1840: : Code:
1.52 jwilke 1841: defempty?
1.48 anton 1842: ghost dup there ca>native resolve <do:> swap >magic !
1.43 pazsan 1843: depth (code) ;
1844:
1845: : end-code
1.52 jwilke 1846: (end-code)
1.43 pazsan 1847: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1848: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1849: ;
1.14 anton 1850:
1.1 anton 1851: >CROSS
1.52 jwilke 1852:
1.1 anton 1853: \ tLiteral 12dec92py
1854:
1855: >TARGET
1.40 pazsan 1856: Cond: \G T-\G ;Cond
1857:
1.1 anton 1858: Cond: Literal ( n -- ) restrict? lit, ;Cond
1859: Cond: ALiteral ( n -- ) restrict? alit, ;Cond
1860:
1861: : Char ( "<char>" -- ) bl word char+ c@ ;
1862: Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond
1863:
1.43 pazsan 1864: \ some special literals 27jan97jaw
1865:
1.52 jwilke 1866: \ !! Known Bug: Special Literals and plug-ins work only correct
1.102 ! jwilke 1867: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1.52 jwilke 1868:
1.43 pazsan 1869: Cond: MAXU
1.52 jwilke 1870: restrict?
1.102 ! jwilke 1871: tcell 1 cells u>
! 1872: IF compile lit tcell 0 ?DO FF T c, H LOOP
! 1873: ELSE ffffffff lit, THEN
1.52 jwilke 1874: ;Cond
1.43 pazsan 1875:
1876: Cond: MINI
1.52 jwilke 1877: restrict?
1.102 ! jwilke 1878: tcell 1 cells u>
! 1879: IF compile lit bigendian
! 1880: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
! 1881: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
! 1882: THEN
! 1883: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52 jwilke 1884: ;Cond
1.43 pazsan 1885:
1886: Cond: MAXI
1.52 jwilke 1887: restrict?
1.102 ! jwilke 1888: tcell 1 cells u>
! 1889: IF compile lit bigendian
! 1890: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
! 1891: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
! 1892: THEN
! 1893: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43 pazsan 1894: ;Cond
1895:
1.1 anton 1896: >CROSS
1897: \ Target compiling loop 12dec92py
1898: \ ">tib trick thrown out 10may93jaw
1899: \ number? defined at the top 11may93jaw
1.77 jwilke 1900: \ replaced >in by save-input
1901:
1902: : discard 0 ?DO drop LOOP ;
1.1 anton 1903:
1904: \ compiled word might leave items on stack!
1.77 jwilke 1905: : tcom ( x1 .. xn n name -- )
1906: \ dup count type space
1907: gfind ?dup
1908: IF >r >r discard r> r>
1909: 0> IF >exec @ execute
1910: ELSE gexecute THEN
1911: EXIT
1912: THEN
1913: number? dup
1914: IF 0> IF swap lit, THEN lit, discard
1915: ELSE 2drop restore-input throw ghost gexecute THEN ;
1.1 anton 1916:
1917: >TARGET
1918: \ : ; DOES> 13dec92py
1919: \ ] 9may93py/jaw
1920:
1921: : ] state on
1.54 pazsan 1922: Compiling comp-state !
1.1 anton 1923: BEGIN
1.77 jwilke 1924: BEGIN save-input bl word
1925: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 1926: ABORT" CROSS: End of file while target compiling"
1927: REPEAT
1928: tcom
1929: state @
1930: 0=
1931: UNTIL ;
1932:
1933: \ by the way: defining a second interpreter (a compiler-)loop
1934: \ is not allowed if a system should be ans conform
1935:
1936: : : ( -- colon-sys ) \ Name
1.52 jwilke 1937: defempty?
1938: constflag off \ don't let this flag work over colon defs
1939: \ just to go sure nothing unwanted happens
1.43 pazsan 1940: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.1 anton 1941: (THeader ;Resolve ! there ;Resolve cell+ !
1.52 jwilke 1942: docol, ]comp depth T ] H ;
1.1 anton 1943:
1.37 pazsan 1944: : :noname ( -- colon-sys )
1.52 jwilke 1945: T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37 pazsan 1946:
1.2 pazsan 1947: Cond: EXIT ( -- ) restrict? compile ;S ;Cond
1.6 anton 1948:
1949: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 1950:
1.52 jwilke 1951: >CROSS
1952: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
1953: ;Resolve cell+ @ ;
1954:
1955: >TARGET
1956:
1957: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
1958:
1.1 anton 1959: Cond: ; ( -- ) restrict?
1960: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1961: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1962: fini,
1963: comp[
1964: state off
1.1 anton 1965: ;Resolve @
1.102 ! jwilke 1966: IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54 pazsan 1967: Interpreting comp-state !
1.1 anton 1968: ;Cond
1.54 pazsan 1969: Cond: [ restrict? state off Interpreting comp-state ! ;Cond
1.1 anton 1970:
1971: >CROSS
1.54 pazsan 1972:
1973: Create GhostDummy ghostheader
1974: <res> GhostDummy >magic !
1975:
1.52 jwilke 1976: : !does ( does-action -- )
1977: \ !! zusammenziehen und dodoes, machen!
1.54 pazsan 1978: tlastcfa @ [G'] :dovar killref
1979: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52 jwilke 1980: \ !! geht so nicht, da dodoes, ghost will!
1.54 pazsan 1981: GhostDummy >link ! GhostDummy
1982: tlastcfa @ >tempdp dodoes, tempdp> ;
1.1 anton 1983:
1984: >TARGET
1985: Cond: DOES> restrict?
1.52 jwilke 1986: compile (does>) doeshandler,
1987: \ resolve words made by builders
1.102 ! jwilke 1988: tdoes @ ?dup IF @ T here H resolve THEN
1.1 anton 1989: ;Cond
1.52 jwilke 1990: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1 anton 1991:
1992: >CROSS
1993: \ Creation 01nov92py
1994:
1995: \ Builder 11may93jaw
1996:
1.102 ! jwilke 1997: : Builder ( Create-xt do:-xt "name" -- )
1.52 jwilke 1998: \ builds up a builder in current vocabulary
1999: \ create-xt is executed when word is interpreted
2000: \ do:-xt is executet when the created word from builder is executed
2001: \ for do:-xt an additional entry after the normal ghost-enrys is used
2002:
1.102 ! jwilke 2003: Make-Ghost ( Create-xt do:-xt ghost )
! 2004: rot swap ( do:-xt Create-xt ghost )
1.78 jwilke 2005: >exec ! , ;
1.102 ! jwilke 2006: \ rot swap >exec dup @ ['] NoExec <>
! 2007: \ IF 2drop ELSE ! THEN , ;
1.1 anton 2008:
1.52 jwilke 2009: : gdoes, ( ghost -- )
2010: \ makes the codefield for a word that is built
1.75 jwilke 2011: >end @ dup undefined? 0=
1.52 jwilke 2012: IF
1.42 pazsan 2013: dup >magic @ <do:> =
1.54 pazsan 2014: IF doer,
2015: ELSE dodoes,
2016: THEN
2017: EXIT
1.52 jwilke 2018: THEN
2019: \ compile :dodoes gexecute
2020: \ T here H tcell - reloff
1.54 pazsan 2021: 2 refered
2022: 0 fillcfa
2023: ;
1.1 anton 2024:
1.52 jwilke 2025: : TCreate ( <name> -- )
2026: executed-ghost @
2027: create-forward-warn
2028: IF ['] reswarn-forward IS resolve-warning THEN
1.102 ! jwilke 2029: Theader >r dup gdoes,
1.77 jwilke 2030: \ stores execution semantic in the built word
1.78 jwilke 2031: \ if the word already has a semantic (concerns S", IS, .", DOES>)
2032: \ then keep it
1.102 ! jwilke 2033: >end @ >exec @ r> >exec dup @ ['] NoExec =
! 2034: IF ! ELSE 2drop THEN ;
1.52 jwilke 2035:
2036: : RTCreate ( <name> -- )
2037: \ creates a new word with code-field in ram
2038: executed-ghost @
2039: create-forward-warn
2040: IF ['] reswarn-forward IS resolve-warning THEN
2041: \ make Alias
1.102 ! jwilke 2042: (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
1.52 jwilke 2043: \ store poiter to code-field
2044: switchram T cfalign H
2045: there swap T ! H
2046: there tlastcfa !
2047: dup there resolve 0 ;Resolve !
2048: >r dup gdoes,
1.78 jwilke 2049: \ stores execution semantic in the built word
2050: \ if the word already has a semantic (concerns S", IS, .", DOES>)
2051: \ then keep it
2052: >end @ >exec @ r> >exec dup @ ['] NoExec =
2053: IF ! ELSE 2drop THEN ;
1.1 anton 2054:
2055: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2056: :noname postpone TCreate ;
2057:
2058: : BuildSmart: ( -- [xt] [colon-sys] )
2059: :noname
1.53 jwilke 2060: [ T has? rom H [IF] ]
1.52 jwilke 2061: postpone RTCreate
2062: [ [ELSE] ]
2063: postpone TCreate
2064: [ [THEN] ] ;
1.1 anton 2065:
2066: : gdoes> ( ghost -- addr flag )
1.52 jwilke 2067: executed-ghost @
1.1 anton 2068: state @ IF gexecute true EXIT THEN
1.102 ! jwilke 2069: >link @ T >body H false ;
1.1 anton 2070:
2071: \ DO: ;DO 11may93jaw
2072: \ changed to ?EXIT 10may93jaw
2073:
1.102 ! jwilke 2074: : DO: ( -- addr [xt] [colon-sys] )
1.1 anton 2075: here ghostheader
1.11 pazsan 2076: :noname postpone gdoes> postpone ?EXIT ;
1.1 anton 2077:
1.102 ! jwilke 2078: : by: ( -- addr [xt] [colon-sys] ) \ name
1.42 pazsan 2079: ghost
2080: :noname postpone gdoes> postpone ?EXIT ;
2081:
1.102 ! jwilke 2082: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1 anton 2083: postpone ; ( S addr xt )
2084: over >exec ! ; immediate
2085:
1.102 ! jwilke 2086: : by ( -- addr ) \ Name
1.1 anton 2087: ghost >end @ ;
2088:
2089: >TARGET
2090: \ Variables and Constants 05dec92py
2091:
1.52 jwilke 2092: Build: ( n -- ) ;
2093: by: :docon ( ghost -- n ) T @ H ;DO
2094: Builder (Constant)
2095:
2096: Build: ( n -- ) T , H ;
2097: by (Constant)
2098: Builder Constant
2099:
2100: Build: ( n -- ) T A, H ;
2101: by (Constant)
2102: Builder AConstant
2103:
2104: Build: ( d -- ) T , , H ;
2105: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2106: Builder 2Constant
2107:
2108: BuildSmart: ;
1.42 pazsan 2109: by: :dovar ( ghost -- addr ) ;DO
1.1 anton 2110: Builder Create
2111:
1.53 jwilke 2112: T has? rom H [IF]
1.54 pazsan 2113: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 2114: by (Constant)
2115: Builder Variable
2116: [ELSE]
1.1 anton 2117: Build: T 0 , H ;
2118: by Create
2119: Builder Variable
1.52 jwilke 2120: [THEN]
1.1 anton 2121:
1.53 jwilke 2122: T has? rom H [IF]
1.54 pazsan 2123: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
2124: by (Constant)
2125: Builder 2Variable
2126: [ELSE]
2127: Build: T 0 , 0 , H ;
2128: by Create
2129: Builder 2Variable
2130: [THEN]
2131:
2132: T has? rom H [IF]
2133: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 2134: by (Constant)
2135: Builder AVariable
2136: [ELSE]
1.1 anton 2137: Build: T 0 A, H ;
2138: by Create
2139: Builder AVariable
1.52 jwilke 2140: [THEN]
1.1 anton 2141:
1.3 pazsan 2142: \ User variables 04may94py
2143:
2144: >CROSS
1.78 jwilke 2145:
1.3 pazsan 2146: Variable tup 0 tup !
2147: Variable tudp 0 tudp !
1.78 jwilke 2148:
1.3 pazsan 2149: : u, ( n -- udp )
2150: tup @ tudp @ + T ! H
1.19 pazsan 2151: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2152:
1.3 pazsan 2153: : au, ( n -- udp )
2154: tup @ tudp @ + T A! H
1.19 pazsan 2155: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2156:
1.3 pazsan 2157: >TARGET
2158:
1.78 jwilke 2159: Build: 0 u, X , ;
2160: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2161: Builder User
2162:
1.78 jwilke 2163: Build: 0 u, X , 0 u, drop ;
1.3 pazsan 2164: by User
1.1 anton 2165: Builder 2User
2166:
1.78 jwilke 2167: Build: 0 au, X , ;
1.3 pazsan 2168: by User
1.1 anton 2169: Builder AUser
2170:
1.52 jwilke 2171: BuildSmart: T , H ;
1.44 pazsan 2172: by (Constant)
1.1 anton 2173: Builder Value
2174:
1.52 jwilke 2175: BuildSmart: T A, H ;
1.44 pazsan 2176: by (Constant)
1.32 pazsan 2177: Builder AValue
2178:
1.52 jwilke 2179: BuildSmart: ( -- ) [T'] noop T A, H ;
1.42 pazsan 2180: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1 anton 2181: Builder Defer
1.37 pazsan 2182:
1.78 jwilke 2183: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37 pazsan 2184: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38 anton 2185: Builder interpret/compile:
1.24 pazsan 2186:
2187: \ Sturctures 23feb95py
2188:
2189: >CROSS
2190: : nalign ( addr1 n -- addr2 )
2191: \ addr2 is the aligned version of addr1 wrt the alignment size n
2192: 1- tuck + swap invert and ;
2193: >TARGET
2194:
1.44 pazsan 2195: Build: ;
2196: by: :dofield T @ H + ;DO
2197: Builder (Field)
2198:
1.51 anton 2199: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2200: rot dup T , H ( align1 align size offset1 )
2201: + >r nalign r> ;
1.44 pazsan 2202: by (Field)
1.24 pazsan 2203: Builder Field
2204:
1.51 anton 2205: : struct T 1 chars 0 H ;
1.24 pazsan 2206: : end-struct T 2Constant H ;
2207:
1.52 jwilke 2208: : cell% ( n -- size align )
1.51 anton 2209: T 1 cells H dup ;
1.88 pazsan 2210:
1.102 ! jwilke 2211:
1.91 pazsan 2212: Build: ( m v -- m' v ) dup T , cell+ H ;
1.88 pazsan 2213: DO: abort" Not in cross mode" ;DO
2214: Builder input-method
2215:
2216: Build: ( m v size -- m v' ) over T , H + ;
2217: DO: abort" Not in cross mode" ;DO
2218: Builder input-var
1.24 pazsan 2219:
1.102 ! jwilke 2220:
! 2221:
1.52 jwilke 2222: \ structural conditionals 17dec92py
2223:
2224: >CROSS
2225: : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2226: : sys? ( sys -- sys ) dup 0= ?struc ;
2227: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2228:
1.78 jwilke 2229: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2230:
1.78 jwilke 2231: : >resolve ( sys -- )
2232: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52 jwilke 2233:
1.78 jwilke 2234: : <resolve ( sys -- )
2235: X here ( dup ." <" hex. ) branchoffset X , ;
1.52 jwilke 2236:
1.78 jwilke 2237: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2238: IS branch, ( target-addr -- )
1.78 jwilke 2239: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2240: IS ?branch, ( target-addr -- )
2241: :noname compile branch T here 0 , H ;
2242: IS branchmark, ( -- branchtoken )
2243: :noname compile ?branch T here 0 , H ;
2244: IS ?branchmark, ( -- branchtoken )
2245: :noname T here 0 , H ;
2246: IS ?domark, ( -- branchtoken )
1.78 jwilke 2247: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2248: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2249: :noname branchto, X here ;
1.54 pazsan 2250: IS branchtomark, ( -- target-addr )
1.52 jwilke 2251:
2252: >TARGET
2253:
2254: \ Structural Conditionals 12dec92py
2255:
2256: Cond: BUT restrict? sys? swap ;Cond
2257: Cond: YET restrict? sys? dup ;Cond
2258:
2259: >CROSS
2260:
1.78 jwilke 2261: Variable tleavings 0 tleavings !
1.52 jwilke 2262:
1.54 pazsan 2263: : (done) ( addr -- )
2264: tleavings @
2265: BEGIN dup
2266: WHILE
2267: >r dup r@ cell+ @ \ address of branch
2268: u> 0= \ lower than DO?
2269: WHILE
2270: r@ 2 cells + @ \ branch token
2271: branchtoresolve,
2272: r@ @ r> free throw
2273: REPEAT r> THEN
2274: tleavings ! drop ;
2275:
1.53 jwilke 2276: >TARGET
2277:
1.54 pazsan 2278: Cond: DONE ( addr -- ) restrict? (done) ;Cond
1.53 jwilke 2279:
2280: >CROSS
1.54 pazsan 2281: : (leave) ( branchtoken -- )
1.53 jwilke 2282: 3 cells allocate throw >r
2283: T here H r@ cell+ !
2284: r@ 2 cells + !
2285: tleavings @ r@ !
2286: r> tleavings ! ;
2287: >TARGET
2288:
1.54 pazsan 2289: Cond: LEAVE restrict? branchmark, (leave) ;Cond
2290: Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond
1.53 jwilke 2291:
1.54 pazsan 2292: >CROSS
2293: \ !!JW ToDo : Move to general tools section
2294:
2295: : to1 ( x1 x2 xn n -- addr )
2296: \G packs n stack elements in a allocated memory region
2297: dup dup 1+ cells allocate throw dup >r swap 1+
2298: 0 DO tuck ! cell+ LOOP
2299: drop r> ;
2300: : 1to ( addr -- x1 x2 xn )
2301: \G unpacks the elements saved by to1
2302: dup @ swap over cells + swap
2303: 0 DO dup @ swap 1 cells - LOOP
2304: free throw ;
2305:
2306: : loop] branchto, dup <resolve tcell - (done) ;
2307:
2308: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2309:
2310: >TARGET
2311:
1.52 jwilke 2312: \ Structural Conditionals 12dec92py
2313:
1.53 jwilke 2314: >TARGET
1.52 jwilke 2315: Cond: AHEAD restrict? branchmark, ;Cond
2316: Cond: IF restrict? ?branchmark, ;Cond
2317: Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond
2318: Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond
2319:
2320: Cond: BEGIN restrict? branchtomark, ;Cond
2321: Cond: WHILE restrict? sys? compile IF swap ;Cond
2322: Cond: AGAIN restrict? sys? branch, ;Cond
2323: Cond: UNTIL restrict? sys? ?branch, ;Cond
2324: Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
2325:
2326: Cond: CASE restrict? 0 ;Cond
2327: Cond: OF restrict? 1+ >r compile over compile =
2328: compile IF compile drop r> ;Cond
1.45 pazsan 2329: Cond: ENDOF restrict? >r compile ELSE r> ;Cond
2330: Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond
1.1 anton 2331:
2332: \ Structural Conditionals 12dec92py
2333:
1.67 jwilke 2334: :noname \ ?? i think 0 is too much! jaw
1.54 pazsan 2335: 0 compile (do)
2336: branchtomark, 2 to1 ;
2337: IS do, ( -- target-addr )
2338:
2339: \ :noname
2340: \ compile 2dup compile = compile IF
2341: \ compile 2drop compile ELSE
2342: \ compile (do) branchtomark, 2 to1 ;
2343: \ IS ?do,
2344:
2345: :noname
2346: 0 compile (?do) ?domark, (leave)
2347: branchtomark, 2 to1 ;
2348: IS ?do, ( -- target-addr )
2349: :noname compile (for) branchtomark, ;
2350: IS for, ( -- target-addr )
2351: :noname 1to compile (loop) loop] compile unloop skiploop] ;
2352: IS loop, ( target-addr -- )
2353: :noname 1to compile (+loop) loop] compile unloop skiploop] ;
2354: IS +loop, ( target-addr -- )
2355: :noname compile (next) loop] compile unloop ;
2356: IS next, ( target-addr -- )
2357:
2358: Cond: DO restrict? do, ;Cond
2359: Cond: ?DO restrict? ?do, ;Cond
2360: Cond: FOR restrict? for, ;Cond
2361:
2362: Cond: LOOP restrict? sys? loop, ;Cond
2363: Cond: +LOOP restrict? sys? +loop, ;Cond
2364: Cond: NEXT restrict? sys? next, ;Cond
1.52 jwilke 2365:
1.1 anton 2366: \ String words 23feb93py
2367:
1.52 jwilke 2368: : ," [char] " parse T string, align H ;
1.1 anton 2369:
1.97 pazsan 2370: Cond: ." restrict? compile (.") T ," H ;Cond
2371: Cond: S" restrict? compile (S") T ," H ;Cond
2372: Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond
1.1 anton 2373:
2374: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 2375: : IS T >address ' >body ! H ;
1.9 pazsan 2376: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2377: : TO T ' >body ! H ;
1.1 anton 2378:
1.52 jwilke 2379: Cond: defers T ' >body @ compile, H ;Cond
2380: : on T -1 swap ! H ;
2381: : off T 0 swap ! H ;
2382:
1.1 anton 2383: \ LINKED ERR" ENV" 2ENV" 18may93jaw
2384:
2385: \ linked list primitive
1.79 jwilke 2386: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 2387: : chained T linked A, H ;
1.1 anton 2388:
2389: : err" s" ErrLink linked" evaluate T , H
1.52 jwilke 2390: [char] " parse T string, align H ;
1.1 anton 2391:
2392: : env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 2393: T string, align , H ;
1.1 anton 2394:
2395: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 2396: here >r T string, align , , H
1.1 anton 2397: r> dup T c@ H 80 and swap T c! H ;
2398:
2399: \ compile must be last 22feb93py
2400:
2401: Cond: compile ( -- ) restrict? \ name
1.13 pazsan 2402: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 2403: 0> IF gexecute
2404: ELSE dup >magic @ <imm> =
2405: IF gexecute
1.54 pazsan 2406: ELSE compile (compile) addr, THEN THEN ;Cond
1.1 anton 2407:
1.102 ! jwilke 2408: Cond: postpone ( -- ) restrict? \ name
1.101 jwilke 2409: bl word gfind dup 0= ABORT" CROSS: Can't compile"
2410: 0> IF gexecute
2411: ELSE dup >magic @ <imm> =
2412: IF gexecute
1.102 ! jwilke 2413: ELSE compile (compile) addr, THEN THEN ;Cond
1.101 jwilke 2414:
1.102 ! jwilke 2415: Cond: [compile] ( -- ) restrict? \ name
1.13 pazsan 2416: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 2417: 0> IF gexecute
2418: ELSE dup >magic @ <imm> =
2419: IF gexecute
1.54 pazsan 2420: ELSE compile (compile) addr, THEN THEN ;Cond
2421:
1.77 jwilke 2422: \ save-cross 17mar93py
2423:
2424: hex
2425:
2426: >CROSS
2427: Create magic s" Gforth2x" here over allot swap move
2428:
2429: bigendian 1+ \ strangely, in magic big=0, little=1
2430: tcell 1 = 0 and or
2431: tcell 2 = 2 and or
2432: tcell 4 = 4 and or
2433: tcell 8 = 6 and or
2434: tchar 1 = 00 and or
2435: tchar 2 = 28 and or
2436: tchar 4 = 50 and or
2437: tchar 8 = 78 and or
2438: magic 7 + c!
2439:
2440: : save-cross ( "image-name" "binary-name" -- )
2441: bl parse ." Saving to " 2dup type cr
2442: w/o bin create-file throw >r
2443: TNIL IF
1.80 anton 2444: s" #! " r@ write-file throw
2445: bl parse r@ write-file throw
2446: s" --image-file" r@ write-file throw
1.77 jwilke 2447: #lf r@ emit-file throw
2448: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2449: ?do
2450: bl over emit-file throw
2451: loop
2452: drop
2453: magic 8 r@ write-file throw \ write magic
2454: ELSE
2455: bl parse 2drop
2456: THEN
2457: image @ there
2458: r@ write-file throw \ write image
2459: TNIL IF
2460: bit$ @ there 1- tcell>bit rshift 1+
2461: r@ write-file throw \ write tags
2462: THEN
2463: r> close-file throw ;
2464:
2465: : save-region ( addr len -- )
2466: bl parse w/o bin create-file throw >r
2467: swap >image swap r@ write-file throw
2468: r> close-file throw ;
2469:
1.54 pazsan 2470: \ \ minimal definitions
2471:
1.77 jwilke 2472: >MINIMAL also minimal
2473:
1.1 anton 2474: \ Usefull words 13feb93py
2475:
2476: : KB 400 * ;
2477:
1.54 pazsan 2478: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
2479:
2480: \ it is useful to define our own structures and not to rely
2481: \ on the words in the compiler
2482: \ The words in the compiler might be defined with vocabularies
2483: \ this doesn't work with our self-made compile-loop
2484:
2485: Create parsed 20 chars allot \ store word we parsed
2486:
2487: : upcase
2488: parsed count bounds
2489: ?DO I c@ toupper I c! LOOP ;
2490:
2491: : [ELSE]
2492: 1 BEGIN
2493: BEGIN bl word count dup WHILE
1.77 jwilke 2494: comment? 20 umin parsed place upcase parsed count
1.54 pazsan 2495: 2dup s" [IF]" compare 0= >r
2496: 2dup s" [IFUNDEF]" compare 0= >r
2497: 2dup s" [IFDEF]" compare 0= r> or r> or
2498: IF 2drop 1+
2499: ELSE 2dup s" [ELSE]" compare 0=
2500: IF 2drop 1- dup
2501: IF 1+
2502: THEN
2503: ELSE
2504: 2dup s" [ENDIF]" compare 0= >r
2505: s" [THEN]" compare 0= r> or
2506: IF 1- THEN
2507: THEN
2508: THEN
2509: ?dup 0= ?EXIT
2510: REPEAT
2511: 2drop refill 0=
2512: UNTIL drop ; immediate
2513:
2514: : [THEN] ( -- ) ; immediate
2515:
2516: : [ENDIF] ( -- ) ; immediate
2517:
2518: : [IF] ( flag -- )
2519: 0= IF postpone [ELSE] THEN ; immediate
2520:
2521: Cond: [IF] postpone [IF] ;Cond
2522: Cond: [THEN] postpone [THEN] ;Cond
2523: Cond: [ELSE] postpone [ELSE] ;Cond
2524:
1.1 anton 2525: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
2526:
1.77 jwilke 2527: : defined? tdefined? ;
1.44 pazsan 2528: : needed? needed? ;
2529: : doer? doer? ;
1.1 anton 2530:
1.52 jwilke 2531: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
2532:
2533: : directive?
1.77 jwilke 2534: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 2535: dup IF nip THEN ;
2536:
2537: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 2538: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 2539: postpone [IF] ;
2540:
1.77 jwilke 2541: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 2542:
1.54 pazsan 2543: Cond: [IFDEF] postpone [IFDEF] ;Cond
2544:
2545: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
2546:
1.1 anton 2547: \ C: \- \+ Conditional Compiling 09jun93jaw
2548:
1.77 jwilke 2549: : C: >in @ tdefined? 0=
2550: IF >in ! X :
1.1 anton 2551: ELSE drop
2552: BEGIN bl word dup c@
2553: IF count comment? s" ;" compare 0= ?EXIT
2554: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
2555: THEN
2556: AGAIN
2557: THEN ;
2558:
1.74 jwilke 2559: : d? d? ;
2560:
2561: \G doesn't skip line when debug switch is on
2562: : \D D? 0= IF postpone \ THEN ;
1.52 jwilke 2563:
1.48 anton 2564: \G interprets the line if word is not defined
1.77 jwilke 2565: : \- tdefined? IF postpone \ THEN ;
1.48 anton 2566:
2567: \G interprets the line if word is defined
1.77 jwilke 2568: : \+ tdefined? 0= IF postpone \ THEN ;
1.1 anton 2569:
1.48 anton 2570: Cond: \- \- ;Cond
2571: Cond: \+ \+ ;Cond
1.52 jwilke 2572: Cond: \D \D ;Cond
1.48 anton 2573:
2574: : ?? bl word find IF execute ELSE drop 0 THEN ;
2575:
2576: : needed:
2577: \G defines ghost for words that we want to be compiled
2578: BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
2579:
1.1 anton 2580: \ words that should be in minimal
1.52 jwilke 2581:
2582: create s-buffer 50 chars allot
2583:
1.77 jwilke 2584: bigendian Constant bigendian
1.1 anton 2585:
1.52 jwilke 2586: : here there ;
1.67 jwilke 2587: : equ constant ;
2588: : mark there constant ;
1.54 pazsan 2589:
2590: \ compiler directives
1.52 jwilke 2591: : >ram >ram ;
2592: : >rom >rom ;
2593: : >auto >auto ;
2594: : >tempdp >tempdp ;
2595: : tempdp> tempdp> ;
2596: : const constflag on ;
2597: : warnings name 3 = 0= twarnings ! drop ;
1.102 ! jwilke 2598: : redefinitions-start twarnings off ;
! 2599: : redefinitions-end twarnings on ;
! 2600: : group 0 word drop ;
! 2601:
1.60 anton 2602: : | ;
2603: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 2604:
1.48 anton 2605: : save-cross save-cross ;
1.52 jwilke 2606: : save-region save-region ;
2607: : tdump swap >image swap dump ;
2608:
1.48 anton 2609: also forth
1.52 jwilke 2610: [IFDEF] Label : Label defempty? Label ; [THEN]
2611: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 2612: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 2613: previous
2614:
1.52 jwilke 2615: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 2616: : + + ;
1.52 jwilke 2617: : 1+ 1 + ;
2618: : 2+ 2 + ;
1.43 pazsan 2619: : 1- 1- ;
2620: : - - ;
1.52 jwilke 2621: : and and ;
2622: : or or ;
1.43 pazsan 2623: : 2* 2* ;
2624: : * * ;
2625: : / / ;
2626: : dup dup ;
2627: : over over ;
2628: : swap swap ;
2629: : rot rot ;
2630: : drop drop ;
2631: : = = ;
2632: : 0= 0= ;
2633: : lshift lshift ;
2634: : 2/ 2/ ;
1.19 pazsan 2635: : . . ;
1.1 anton 2636:
1.79 jwilke 2637: : all-words ['] forced? IS skip? ;
1.43 pazsan 2638: : needed-words ['] needed? IS skip? ;
1.75 jwilke 2639: : undef-words ['] defined2? IS skip? ;
2640: : skipdef skipdef ;
1.1 anton 2641:
1.40 pazsan 2642: : \ postpone \ ; immediate
1.47 pazsan 2643: : \G T-\G ; immediate
1.40 pazsan 2644: : ( postpone ( ; immediate
1.1 anton 2645: : include bl word count included ;
1.52 jwilke 2646: : require require ;
1.1 anton 2647: : .( [char] ) parse type ;
1.52 jwilke 2648: : ." [char] " parse type ;
1.1 anton 2649: : cr cr ;
2650:
1.77 jwilke 2651: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
2652:
2653: \ only forth also cross also minimal definitions order
1.1 anton 2654:
2655: \ cross-compiler words
2656:
2657: : decimal decimal ;
2658: : hex hex ;
2659:
1.77 jwilke 2660: \ : tudp X tudp ;
2661: \ : tup X tup ;
2662:
2663: : doc-off false to-doc ! ;
2664: : doc-on true to-doc ! ;
1.39 pazsan 2665:
1.52 jwilke 2666: [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 2667:
1.1 anton 2668: \ for debugging...
2669: : order order ;
1.52 jwilke 2670: : hwords words ;
2671: : words also ghosts words previous ;
1.1 anton 2672: : .s .s ;
2673: : bye bye ;
1.99 pazsan 2674:
1.1 anton 2675: \ turnkey direction
2676: : H forth ; immediate
2677: : T minimal ; immediate
2678: : G ghosts ; immediate
2679:
1.77 jwilke 2680: : turnkey
1.78 jwilke 2681: \GFORTH 0 set-order also ghosts
2682: \ANSI [ ' ghosts >wordlist ] Literal 1 set-order
2683: also target definitions
1.77 jwilke 2684: also Minimal also ;
1.1 anton 2685:
2686: \ these ones are pefered:
2687:
2688: : lock turnkey ;
1.74 jwilke 2689: : unlock previous forth also cross ;
1.52 jwilke 2690:
1.77 jwilke 2691: \ also minimal
1.102 ! jwilke 2692: : [[ also unlock ;
! 2693: : ]] previous previous also also ;
1.1 anton 2694:
2695: unlock definitions also minimal
2696: : lock lock ;
2697: lock
1.77 jwilke 2698:
2699: \ load cross compiler extension defined in mach file
2700:
2701: UNLOCK >CROSS
2702:
2703: [IFDEF] extend-cross extend-cross [THEN]
2704:
2705: LOCK
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